989650199 has 2 divisors, whose sum is σ = 989650200. Its totient is φ = 989650198.

The previous prime is 989650171. The next prime is 989650213. The reversal of 989650199 is 991056989.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 989650199 - 2²⁰ = 988601623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989650159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494825099 + 494825100.

It is an arithmetic number, because the mean of its divisors is an integer number (494825100).

Almost surely, 2^989650199 is an apocalyptic number.

989650199 is a deficient number, since it is larger than the sum of its proper divisors (1).

989650199 is an equidigital number, since it uses as much as digits as its factorization.

989650199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 56.

The square root of 989650199 is about 31458.7062512113. The cubic root of 989650199 is about 996.5380953798.

The spelling of 989650199 in words is "nine hundred eighty-nine million, six hundred fifty thousand, one hundred ninety-nine".